Teresa Rodriguez knew something was wrong when she lost her sense of smell.
She was cooking dinner with her daughter, and it hit her that something was off. The following morning, on March 23, she woke up feeling extremely tired, and her health deteriorated quickly from there.
“By the next week, I was totally immobilized,” she said.
Once she had the strength to get out of bed, Rodriguez, who is in her early 50s, drove to the nearest community Covid-19 testing site in the San Francisco Bay Area, staffed by the Alphabet company Verily. A few days later, the test came back positive.